NASA Technical Report Server (NTRS)

The NTRS is a valuable resource for researchers, students, educators, and the public to access NASA's current and historical technical literature and engineering results. Over 500,000 aerospace-related citations, over 200,000 full-text online documents, and over 500,000 images and videos are available. NTRS content continues to grow as new scientific and technical information (STI) is created or funded by NASA. The types of information found in the NTRS include: conference papers, journal articles, meeting papers, patents, research reports, images, movies, and technical videos.

The NTRS integrates NASA's following three collections and enables search and retrieval through a common interface:

• NACA Collection: Citations and reports from the National Advisory Committee for Aeronautics period lasting from 1916 to 1958.
• NASA Collection: Citations and documents created or sponsored by NASA starting in 1958 and continuing to the present.
• NIX Collection: Citations and images, photos, movies, and videos are downloaded from the NASA Image eXchange and served out through NTRS. NIX is a separate system and users can also go directly to the NIX site to search imagery.

Citations in the NTRS indicate if an item is available online or if it should be ordered. If the item is available from NASA, the citation will provide guidance on ordering items from the NASA Center for AeroSpace Information. If the item is not available from NASA, the citation provides a link to a list of suggested sources from which to order the document.

See the NACA and NASA Refsheet for guidance on locating these documents in the library.

Other databases for:

• Article searching
• Conference papers, preprints, and working papers
• Multimedia
• Patents and trademarks
• Reports, standards, and financials
• Statistics and data sets
• Theses and dissertations
• Freely accessible databases
• Contents of database in Summon

Other databases covering:

• Engineering and physical sciences